206057706704 has 20 divisors (see below), whose sum is σ = 400036896000. Its totient is φ = 102822378720.

The previous prime is 206057706649. The next prime is 206057706709. The reversal of 206057706704 is 407607750602.

It is a super-2 number, since 2×206057706704² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206057706709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12896432 + ... + 12912399.

It is an arithmetic number, because the mean of its divisors is an integer number (20001844800).

Almost surely, 2^206057706704 is an apocalyptic number.

It is an amenable number.

206057706704 is a deficient number, since it is larger than the sum of its proper divisors (193979189296).

206057706704 is a wasteful number, since it uses less digits than its factorization.

206057706704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25809338 (or 25809332 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 206057706704 in words is "two hundred six billion, fifty-seven million, seven hundred six thousand, seven hundred four".